影响 :focus'd 元素的父元素（首选纯 CSS+HTML）
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Affecting parent element of :focus'd element (pure CSS+HTML preferred)
提问by Shane Daniel
How can I change the background of a parent <div>when an <input>or <a>is :focus'd (or any other dynamic pseudo-class?
我怎样才能改变父母的背景<div>的时候<input>或者<a>是：focus'd（或任何其他动态伪类？
Eg
例如
<div id="formspace">
<form>
<label for="question">
How do I select #formspace for the case when a child is active?</label>
<input type="text" id="question" name="answer"/></form></div>
采纳答案by Rowno
Unfortunately css doesn't support parent selectors. :(
So the only way to do it is to use javascript like the jQuery parent method.
不幸的是 css 不支持父选择器。:(
所以唯一的方法是像jQuery父方法一样使用javascript 。
Update:CSS Selectors Level 4 will support parent selectors! http://www.w3.org/TR/selectors4/#subject
更新：CSS Selectors Level 4 将支持父选择器！http://www.w3.org/TR/selectors4/#subject
回答by anthares
The only way I can think of is with JavaSCript:
我能想到的唯一方法是使用 JavaSCRipt：
function focusLink(isOnFocus)
{
if (isOnFocus)
document.getElementById('formspace').className = "<make a focus class name here>";
else
document.getElementById('formspace').className = "<default class name here>";
}
...
...
<input onFocus="focusLink(true)" onBlur="focusLink(false)">
Hope that helps!
希望有帮助！
